Othkibl gilmore



UNITED STATES PATENT OFFICE.

OTHNIEL GILMORE, OF RAYNHAM, MASSACHUSETTS.

POLISHING THE SOLES OF BOOTS AND SHOES.

Specilication forming part of Letters Patent No. 44,946., dated November S, 1864.

To all whom it may concern Beit known that I, OTHNIEL GILMORE, of Baynham, in the county ot Bristol and State of Massachusetts, haveinvented an Improved y Machine for Polishing and Finishing the Soles of Boots and Shoes 5 and I do hcreby declare that the following, taken in connection with the drawings which accompany and form part of this specification, is a description of my invention suflicient to enable those skilled in the art to practice it.

On the 21st of April, 1863, Letters Patent of the United States, numbered 38,257, were granted on the invention of B. Q. Budding, on a machine for polishing and solidifying the soles ot' boots and shoes. In such machine there was employed a jack for holding the boot or shoe stationary to the action ofa polishin g or rolling rubber or tool, which roll had a reciprocating motion imparted to it over the sole, while it was capable of being rocked lat erally over the surface of the sole, and of being brought with more or less force against said surface by the operator. Each longitudinal movement ofthe roll in such machine was over the entire length ot' surface to be polished.

My invention may be considered as an improvementuponsuch machine; andit consists in combining with a reciprocating roll a rocking-jack, and in giving to the roll an extent of movement over a part only of the surface at each reciprocation in connection with a capability of longitudinal movement in thejack.

The drawings show a machine embodying my invention Figure l representing' a top view, and Fig. 2 a side elevation thereof. Fig. o is an end view of the jack frame and jack.

a denotes the bed of the machine; b, ajackcarriage sliding thereon, longitudinal movementbeingimparted to the carriage by a gear, c, working in a rack, d, ou the bottom surface ofthe carriage. In this carriage ajack, e, is hung, thejack being' so suspended in the frame as to be capable of freely rocking therein, so that the boot or shoe can be turned laterally to the action of the polishing-tool F.` This tool or roll is hung upon a shaft which is connected at its opposite ends by connectingrods gto crank l on a rotary shaft, h. A rocking frame, i, is hung upon this shaft, and the shaft of the roll works through slots made in the opposite arms thereof, as seen in Fig. 1. The fra-me is connected by rods, cords, or other suitable mechanism with a treadlc or foot-piece, by means ot' which the pressure of the roll upon the surface being polished is produced and regulated at pleasure, as will be readily understood. The throw of the crank is short as compared with the length f the sole, so that the movement of the polisher is only over a portion of the sole.

In the Budding machine referred to, where the polishing-tool has a movement over the whole length of surface to be polished, much difficulty is experienced in operating because of the varying degree of pressure required upon different portions of the surface to be polished. As, for instance, in polishing or leveling along the sole and in the shank much greater pressure is required in the shank than upon the sole, so that the operator has to use great exertion in changing the degree of pressure at each stroke ot' the roll, while he also has to vary the degree of lateral or rocking movement given to the polisher during each forward and back movement, the shank, from its greater curvature, requiring, ofcourse, much greater lateral movement ot' the polishing-tool, the whole operation being rendered very laborious, especially with some particular classes of work. By my construction I remedy these difficulties by giving the short throw to the polisher and so arranging theiack thatit can be fed forward or back to bring the different parts to be polished successively under the polisllingtool, and by so arranging the jack that the shoe can be freely turned laterally to the extent required b y the parts of the shoe successively brought under the polisher. The jack is rocked by a handle, k, and crankvlever I, or in any other convenient manne-r.

I claim- 1. Combining with the polishing or leveling roll or tool a rocking jack, for turning the shoe under the action ofthe roll, substantially as set forth.

2. So arranging the jack'carriage and the mechanism which impels the polisher that the polisher has a reciprocating movement but partially over the surface to he polished, while the carriage is fed through this plane of movement substantially as described, to bring the entire length of surface to the action of the polisher.

OTHNIEL GILMOBE.

Witnesses J. B. GRosBY, F. GoULn. 

